-
ifdma_tfrank
The Interleaved Frequency Division Multiple Ac-
cess (IFDMA) scheme is based on compression, repetition and
subsequent user dependent frequency shift of a modulated signal.
Multiple access is enabled by the assignment of overlapping but
mutually orthogonal subcarriers to each user. In this paper it
is shown that IFDMA can be regarded as unitary precoded
OFDMA with interleaved subcarriers. On the other hand,
IFDMA is shown to be a CDMA variant with frequency domain
orthogonal signature sequences and chip interleaving. Thus, it
combines the advantages of single and multi carrier transmission
such as low peak to average power ratio, orthogonality of the
signals of different users even for transmission over a time
dispersive channel and low complexity. Simulation results show
the good performance of coded IFDMA transmission over a
mobile radio channel for different data rates.
- 2010-12-01 19:31:38下载
- 积分：1
-
randn
cma的MATLAB仿真程序，已经仿真过，供大家参考(cma of the MATLAB simulation program has been simulated for reference)
- 2011-05-01 15:56:05下载
- 积分：1
-
msksyn
此程序为8cpfsk的同步部分用msk实现(This program is part of 8cpfsk synchronization achieved by msk)
- 2011-05-03 15:30:49下载
- 积分：1
-
image_Histogram_equalization
matlab中重要的数字图像处理技术：直方均衡化，可以看出灰度图像的灰度值分布，并且去噪。(matlab important digital image processing techniques: Histogram equalization, we can see the distribution of gray-scale image of the gray value, and the de-noising.)
- 2009-11-24 11:25:28下载
- 积分：1
-
rayaperture
用matlab分析传统光学系统中加入三次相位掩模板之后所获得的光线像差(Analysis using matlab conventional optical system by adding three phase mask obtained after the aberration of light)
- 2013-08-28 16:55:43下载
- 积分：1
-
workKWS
In this code we use the technique of keyword spotting to search in the spoken document
- 2013-10-09 20:43:04下载
- 积分：1
-
ab5
对matlab初学者很有帮助，尤其是simulink的爱好者。(Matlab helpful for beginners, especially the simulink lovers.)
- 2012-11-05 17:45:45下载
- 积分：1
-
gradient descent
说明： 梯度下降法是一個一階最佳化算法，通常也稱為最速下降法。 要使用梯度下降法找到一個函數的局部極小值，必須向函數上當前點對應梯度（或者是近似梯度）的反方向的規定步長距離點進行疊代搜索。如果相反地向梯度正方向疊代進行搜索，則會接近函數的局部極大值點；這個過程則被稱為梯度上升法。(The gradient descent method is a first-order optimization algorithm, also commonly referred to as the steepest descent method. To find the local minimum of a function using the gradient descent method, an iterative search must be performed to the specified step distance point in the opposite direction of the gradient (or approximate gradient) of the current point on the function. If the search is reversed in the opposite direction to the positive direction of the gradient, it will approach the local maximum point of the function; this process is called the gradient ascent method.)
- 2019-02-21 23:13:19下载
- 积分：1
-
ControlofIM
control of IM. provides method of vector control of an insuction motor......
- 2010-06-05 00:33:55下载
- 积分：1
-
ScriptforcomputingtheSNRimprovementi1
Script for computing the SNR improvement in
Rayleigh fading channel with selection diversity
- 2010-07-11 20:21:40下载
- 积分：1
